suffolk county district attorney dan conley joined governor duval patrick and a number of earth massachusetts officials. deval patrick. to talk about who is responsible for yesterday's bombings. this happened earlier today. >> thank you for coming this morning. 24 hours after yesterday's act of terror we want to organize information for you with the information we have. the mayor is here. the members of our congressional delegation, all the law enforcement leadership. we have several people that want to present to you this morning and take your questions. a couple of points i want to mention at the outset. i told you yesterday that the fbi has taken charge of the investigation. special agent in charge rick deslauriers will speak shortly. it is important to clarify that two and only two explosive devices were found yesterday. other parcels, all other parcels in the area of the blast have been examined and there are no unexploded bombs. there were no unexploded explosive devices found. over 150 people were injured yesterday in the, in the blasts, some gravely. our thoughts go out to all those i